Okay, not FB, but it didn't deserve it's on thread. This was on r/Frugal on Reddit.
A guy asked which car he should buy, he drives a 99 Civic but wants to get one a few years old or a 2016 for $15k with very little miles.
Everyone said get the 2016, you deserve it, it's a great deal with low miles so it's basically brand new, etc etc.
I commented saying you shouldn't buy a car you can't afford to with cash and that 10% of your income is not a bad rule of thumb (so $7k for him). Now I'm arguing with someone who says that a car payment isn't a "big risk" because you should have an emergency fund, you could always sell the car, and it IS more expensive but "you get what you pay for".
I think I should unsubscribe from r/Frugal.